What's got me puzzled is Jorah laying his hands on everyone. Is he trying to take them all with him? Not only the other 'pit' fighters, but he took Dany's hand, then she took Missandei's…not being a greyscale expert - do they have to come into direct contact with the affected area, or is he a walking contagion? What's…

I think that was explained when the now dead fiance was pleading with Dany in her throne room. It was around that time, anyway. Whether it's true or not, it was suggested by one of the characters.

Yes - I knew that it was all over for her when Mel mentioned taking the child along, after an earlier suggestive comment about her worthy status.